[Hallicrafters] RMA Dummy antenna

[Edward B Richards]

Yes, "shunted" means in parallel with.

It simulates the average antenna fed with open line. Since we use coax
now, forget the dummy antenna and tune it with a 50 ohm input. Some
people think a TV balun gives better results. Try it both ways.

73, Ed Richards K6UUZ
Simi Valley, Ca 93065
Home of the Air Force 1 pavilion

On Tue, 23 Jan 2007 13:40:45 -0800 "Rich Soennichsen"
<rsoennichsen at gmail.com> writes:
> In my Sx-42 alignment instructions call for the use of an "RMA" 
> dummy
> antenna.  It is an LC circuit consisting of a 200pF cap in series 
> with
> a 20uH inductor.  The inductor is "shunted with a 400 pF cap in 
> series
> with a 400 ohm resistor.  Two questions:
> 
> Shunted:  does this mean in parallel with?
> what does this thing do?
> 
> thanks
> 
> Rich
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